Jason Anderson vs. Steven Jackson — Career Comparison

On the career pitching numbers, Steven Jackson posted a stronger line than Jason Anderson. Steven Jackson posted stronger numbers in ERA (4.31 vs 6.39) and WHIP (1.583 vs 1.974). By the career numbers, Steven Jackson had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.